Ocorrência de endotoquia matricida em Meloidogyne javanica (Nematoda, Heteroderidae)
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چکیده
منابع مشابه
Gametogenesis and Reproduction of Meloidogyne graminis and M. ottersoni (Nematoda: Heteroderidae).
Oogenesis and spermatogenesis of seven populations of Meloidogyne graminis and one population of M. ottersoni (formerly Hypsoperine spp.) were of the meiotic type. When males were abundant, reproduction was by amphirnixis. In most greenhouse cultures, however, males were rare and reproduction was by meiotic parthenogenesis. M. graminis and M. ottersoni are closely related to each other and to M...
متن کاملRelative DNA Content and Chromosomal Relationships of some Meloidogyne, Heterodera, and Meloidodera spp. (Nematoda: Heteroderidae).
The relative DNA content of hypodermal nuclei of preparasitic, 2nd-stage larvae was determined cytophotometrically in 19 populations belonging to 13 species of Meloidogyne, Heterodera and Meloidodera. In Meloidogyne hapla, M. arenaria, M. incognita and M. javanica, total DNA content per nucleus is proportional to their chromosome number, indicating that chromosomal forms with high chromosome nu...
متن کاملMeloidogyne javanica Parasitic on Peanut.
Peanut fields in four governorates of Egypt were surveyed to identify species of Meloidogyne present. Fourteen populations obtained from peanut roots were all identified as M. javanica based on perineal patterns, stylet and body lengths of second-stage juveniles, esterase phenotypes, and restriction fragment length polymorphisms of mtDNA. Three of 14 populations, all from contiguous fields in t...
متن کاملInteraction of Meloidogyne javanica with Different Races of Meloidogyne incognita.
The interspecific interactions of Meloidogyne javanica with races 1, 2, 3, and 4 of M. incognita on tomato were determined. Impacts of the interactions on fecundity and morphometrics of females were also examined. Mutually inhibitory interactions occurred between M. javanica and the races of M. incognita, but the negative interactions did not reflect in plant growth. Numbers of root galls, egg ...
متن کاملMeloidogyne javanica on Peanut in Florida.
A mixed population of Meloidogyne arenaria race 1 and M. javanica race 3 is reported on peanut from a field in Levy County, Florida. Confirmation of M. javanica on peanut is based on esterase and malate dehydrogenase isozyme patterns resolved on polyacrylamide slab gels following electrophoresis, and perineal patterns. Up to 29% of 290 individual females collected from peanut roots in the field...
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ژورنال
عنوان ژورنال: Anais da Escola Superior de Agricultura Luiz de Queiroz
سال: 1962
ISSN: 0071-1276
DOI: 10.1590/s0071-12761962000100022